Proportional Relationships

Does the table represent a proportional relationship?

• yes
• no

Does the table represent a proportional relationship?

• yes
• no

Which equation represents a proportional relationship?

• y = x + 3
• y = x - 9
• y = 7x
• y = 4x + 1

Which equation represents a proportional relationship?

• y = x/2
• y = 10 + x
• y = 14 - x
• y = 5x + 8

Which equation DOES NOT represent a proportional relationship?

• y = 11x
• y = x/4
• y = 1/2 x
• y = x + 3

The cost, c, of potato salad by its weight in pounds, p, at a deli is given in the table above.  Which equation best models this data.

• c = .29p
• c = 3.5p
• p = .29c
• p = 3.5c

What is the constant of proportionality based on the table above?

• 1/75
• 75
• 1
• 0

Determine the unit rate from the table above given the distance in leagues, x, and the distance in miles, y.

• k = 1/3
• k = 3
• k = 6
• k = 1

Write the equation for the table given

• y = 1/3x
• y = 3x
• y = 1/2x
• x = 3y

In the equation y = 14x, what is the constant of proportionality?

• y
• x
• 14